Pneumatic tire.



I. B. HUGKSTEP.

PNBUMATIG TIRE.

APPLICATION FILED 1111.11.26, 1912.

1,058,433. l Patented Apr. 8, 1913.

WITNESSES NVENTOR which folio narnrrr onirical rewaaesrenon or cnn-rimer fro WILLIIE er trentine., iowa.

ramera-arto man.

, ae, wie.

1lb all 'mitm may itlrne-wr i a citiaen of Des Moines, in t" of iowa, have useful "improv My ini/enti fi 'y pneumatic ti: a pneninatie' armor to prei tube.

The object simple and inei.L for protecting i chain armor will e1 ing of a tafslr er the l will not deprive tl e ity; and which, will automatically close the interstices on A' the entering; of a shaA To the dy broadly es arri-or or f tain novel i' lainetionsy oi5 as disclosed in the ecco drawings l have illustrated 'a .rirfor constructed in accordance w li einbc iciples of my invention, in whie Figure i is cross-section my iniproveinen n a iii i 2 2a are det tire chain detached and on an exaggated scale, illustrating; the peculiar compensating or automatic closure of t intereticiy i of the 'ion to provide a4 in of chain'arinor r tube of atire; which etnally prevent elter- L any at le; which coils, and Fig. 3 is e eros section oA i iiiodified forni of iniy sien, which plnrality of strips of the exib is nioided into the rubber of the outer i of links C, which are i 'tei-weve very flexible construction che and which as best shor i in EL., ately close up when brei a sharp object to i obiect. Ilfhe l ls compose material and are each. bent best shown in Fig. Qa to provide downwardly iding portion. bent at its lower end to forni an upwardly inclined portion C2, bent over ,',tien of Lettere Patent.

ratentea Apr. 8,1913. Serial No. 636,3?31.

upon itseliY at( its upper end to form a downwardly extending portion C3 arranged a plane substantially parallel to that of the portion C', which portion C3 is bent upon itself at its lower extremity to provide the upwardly extending portionl C4 arranged parallel to the portion C2 and bent downwardly at its upper extremity to providethe portion C5 arranged in a plane parallel'to the portions C and CS. The strips of armor are cemented or otherwise fastened to a fabric D, arranged above and cemented to the inner etube, and said fabric is preferably somewhat wider in cross-section than the cross-section of the tire. From this e0nstruction it will be seen that the armor is interposed between the outer'tube ofthe tire and the inner tube and is retained in place by a bindingr of fabric or the like, and that by 'reason or the peculiar formation of the links the armor, the links will automatically close up the interstiees therebetween upon Contact with a sharp entering point.

ln the modified construction illustrated in Fig. 3 the strips oi chain E are molded intov thezrubber of the outer tube F and are a1'- ranged in staggered relation toprevent en-,l tering of a point at any angle. vIn this form, the construction of the chain links is the saine as that in the preferred iform.

Frein the foregoing description, taken in coniiection with the drawing, it will be apparent to all. that l have provided an armor for inner tubes of tires which will prevent puncturing thereof by reason of its peculiar construction, and which will generally speaking', lill a long-felt want in the automobile and bicycle trade.

rlhe gist of my invention and the most important feature of my improvement resides in the peculiar angular shape of the links or members forming the chain with the small interlocking bends, asby this oonstruction, when the chain is placed in ,proper position and tension or strain is brought 100 ei' the links are flattened, as at G which eon 105 struction causes 'the chain to present a per- 4 D feci-ly ilat upper and lower face to the matei-iai and thfe` complete cham forms a fiat armor after the manner of a perfectly ajft A strip of material, and in this manner does' 10 not faces to the material of the tire. The man-` present any rough or protruding surchain or in a series of sections having their ends overlapping. The peculiar angular or ohlate shape of the coils or helicesl of the chains and their manner of connections with their dat faces enables the coils or helices to move inany direction to entirely close the coils `or helices and form a puncture proof structure and enables the 'coils or helices to 20 .open or spread apart so that the guard will lie perfectly at in the tire and any sharp or rough surfaces.

I Clainiz A tire armor, comprising a series of in- 25 terlaced oblate helices the interengaging faces of the convolutions being flattened.

In testimony whereof I aiiix my signature in presence of two Witnesses.

FRANCIS B. HUCKSTEP.

Witnesses:

E. F. MORSE, JAMES W. BRYANT, Jr.

not present 

